A Phase I Safety and Immunogenicity Trial of Live Recombinant Canarypox-gp160 MN (ALVAC vCP125, HIV-1 gp160 MN) in HIV-1 Uninfected Adult Volunteers

NCT ID: NCT00000813

Last Updated: 2021-11-04

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE1
• Total Enrollment: 28 participants
• Study Classification: INTERVENTIONAL
• Study Completion Date: 1995-06-30

Brief Summary

Part A: To evaluate the safety and immunogenicity of ALVAC vCP125 HIV-1 gp160 MN live canarypox recombinant vaccine (ALVAC gp160 MN) versus a recombinant canarypox expressing the rabies glycoprotein (ALVAC rabies glycoprotein) as a control in healthy, HIV-1 uninfected adult volunteers.

Part B: To evaluate the schedule of two immunizations with ALVAC gp160 MN for optimal immunogenicity.

Amendment: 12/22/93: To determine whether ALVAC gp160 MN in combination with SF-2 rgp120 subunit protein is capable of generating humoral and cellular immune responses of greater intensity and longer duration than either vaccine administered alone.

A canarypox-vectored vaccine (ALVAC) that expresses the gp160 antigen of the HIV-1 MN strain might satisfy many criteria for an affordable HIV vaccine. Per 12/22/93 amendment: Cellular responses have been augmented by the combination of two recombinant vaccines, especially in vaccinia naive individuals.

Detailed Description

A canarypox-vectored vaccine (ALVAC) that expresses the gp160 antigen of the HIV-1 MN strain might satisfy many criteria for an affordable HIV vaccine. Per 12/22/93 amendment: Cellular responses have been augmented by the combination of two recombinant vaccines, especially in vaccinia naive individuals.

In Part A, 28 healthy volunteers (15 vaccinia-immune and 13 vaccinia-naive) are randomized to receive intramuscular injections of ALVAC gp160 MN at a dose of 1 million TCID50 or ALVAC rabies glycoprotein as a control at months 0 and 2. In Part B, 90 healthy volunteers (60 vaccinia immune and 30 vaccinia naive) are randomized to receive ALVAC gp160 MN at a dose of 10 million TCID50 or ALVAC rabies glycoprotein control, on an immunization schedule of either month 0 and 1 or 0 and 2. For Part B, half of the patients receiving ALVAC gp160 MN, as well as approximately half of those receiving control vaccine, will receive booster immunizations with SF-2 rgp120 subunit protein, if available, at months 9 and 12; the other half will receive booster immunizations with the same preparation as they received for their first two immunizations. In Part A, all control volunteers except one within each control group receive SF-2 rgp120 subunit protein at months 9 and 12. An additional group of 10 volunteers will receive four injections of SF-2 rgp120 subunit protein at months 0, 1, 6 and 12. Part B will begin whenever the higher dose of ALVAC gp160 MN becomes available (at least 4 weeks after initiation of Part A). Volunteers are followed for at least 18 months. Per 06/10/94 addendum, volunteers will be contacted once or twice per year for at least 5 years to check on health status.

Conditions

HIV Infections

Keywords

Vaccines, Synthetic; HIV Envelope Protein gp160; HIV Envelope Protein gp120; AIDS Vaccines; HIV Seronegativity; Avipoxvirus; HIV Preventive Vaccine

Study Design

• Primary Study Purpose: PREVENTION
• Blinding Strategy: DOUBLE

Interventions

ALVAC-HIV gp160MN (vCP125)

Intervention Type: BIOLOGICAL

ALVAC-RG Rabies Glycoprotein (vCP65)

Intervention Type: BIOLOGICAL

rgp120/HIV-1 SF-2

Intervention Type: BIOLOGICAL

Eligibility Criteria

Inclusion Criteria

Subjects must have:

• Normal history and physical exam.
• Negative ELISA for HIV.
• CD4 count >= 400 cells/mm3.
• Normal urine dipstick with esterase and nitrite.
• Lower risk sexual behavior.

NOTE:

• No more than 10 percent of participants will be older than 50 years.

Prior Medication:

Allowed:

• Prior smallpox vaccination.

Exclusion Criteria

Co-existing Condition:

Subjects with the following symptoms or conditions are excluded:

• Positive hepatitis B surface antigen.
• Medical or psychiatric condition (such as recent suicidal ideation or present psychosis) that precludes compliance.
• Occupational responsibilities that preclude compliance.
• Active syphilis. NOTE: Subjects with serology documented to be a false positive or due to a remote (> 6 months) treated infection are eligible.
• Active tuberculosis. NOTE: Subjects with a positive PPD and a normal chest x-ray showing no evidence of TB and not requiring isoniazid therapy are eligible.
• Allergy to egg products or neomycin.
• Occupational exposure to birds.

Subjects with the following prior conditions are excluded:

• History of immunodeficiency, chronic illness, autoimmune disease, or use of immunosuppressive medications.
• History of anaphylaxis or other serious adverse reactions to vaccines.
• Prior immunization against rabies.
• History of serious allergic reaction to any substance, requiring hospitalization or emergent medical care (e.g., Stevens-Johnson syndrome, bronchospasm, or hypotension).
• Prior psychiatric condition (such as history of suicide attempts or past psychosis) that precludes compliance.
• History of cancer unless there has been surgical excision that is considered to have achieved cure.

Prior Medication:

Excluded:

• Live attenuated vaccines within 60 days prior to study entry. NOTE: Medically indicated killed or subunit vaccines (e.g., influenza, pneumococcal) do not exclude if administered at least 2 weeks from HIV immunizations.
• Experimental agents within 30 days prior to study entry.
• Prior HIV vaccines.
• Prior rabies immunization.

Prior Treatment:

Excluded:

• Blood products or immunoglobulin within 6 months prior to study entry. It is STRONGLY RECOMMENDED that any activity that might expose subject to HIV (unprotected sex or needle sharing) be avoided.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 60 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Pasteur Merieux Connaught

INDUSTRY

Sponsor Role: collaborator

National Institute of Allergy and Infectious Diseases (NIAID)

NIH

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Clements ML

Role: STUDY_CHAIR

Locations

JHU AVEG

Baltimore, Maryland, United States

Countries

United States

References

Clements-Mann ML, Weinhold K, Matthews TJ, Graham BS, Gorse GJ, Keefer MC, McElrath MJ, Hsieh RH, Mestecky J, Zolla-Pazner S, Mascola J, Schwartz D, Siliciano R, Corey L, Wright PF, Belshe R, Dolin R, Jackson S, Xu S, Fast P, Walker MC, Stablein D, Excler JL, Tartaglia J, Paoletti E, et al. Immune responses to human immunodeficiency virus (HIV) type 1 induced by canarypox expressing HIV-1MN gp120, HIV-1SF2 recombinant gp120, or both vaccines in seronegative adults. NIAID AIDS Vaccine Evaluation Group. J Infect Dis. 1998 May;177(5):1230-46. doi: 10.1086/515288.

Reference Type: BACKGROUND

PMID: 9593008 (View on PubMed)

Ferrari G, Humphrey W, McElrath MJ, Excler JL, Duliege AM, Clements ML, Corey LC, Bolognesi DP, Weinhold KJ. Clade B-based HIV-1 vaccines elicit cross-clade cytotoxic T lymphocyte reactivities in uninfected volunteers. Proc Natl Acad Sci U S A. 1997 Feb 18;94(4):1396-401. doi: 10.1073/pnas.94.4.1396.

Reference Type: BACKGROUND

PMID: 9037064 (View on PubMed)

Zolla-Pazner S, Alving C, Belshe R, Berman P, Burda S, Chigurupati P, Clements ML, Duliege AM, Excler JL, Hioe C, Kahn J, McElrath MJ, Sharpe S, Sinangil F, Steimer K, Walker MC, Wassef N, Xu S. Neutralization of a clade B primary isolate by sera from human immunodeficiency virus-uninfected recipients of candidate AIDS vaccines. J Infect Dis. 1997 Apr;175(4):764-74. doi: 10.1086/513969.

Reference Type: BACKGROUND

PMID: 9086128 (View on PubMed)

Egan MA, Pavlat WA, Tartaglia J, Paoletti E, Weinhold KJ, Clements ML, Siliciano RF. Induction of human immunodeficiency virus type 1 (HIV-1)-specific cytolytic T lymphocyte responses in seronegative adults by a nonreplicating, host-range-restricted canarypox vector (ALVAC) carrying the HIV-1MN env gene. J Infect Dis. 1995 Jun;171(6):1623-7. doi: 10.1093/infdis/171.6.1623.

Reference Type: BACKGROUND

PMID: 7769304 (View on PubMed)

Other Identifiers

AVEG 012B

Identifier Type: -

Identifier Source: secondary_id

10557

Identifier Type: REGISTRY

Identifier Source: secondary_id

AVEG 012A

Identifier Type: -

Identifier Source: org_study_id